123892005

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 218350080

約数和(自身を除く): 94458075

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 89, 103, 159, 255, 265, 267, 309, 445, 515, 795, 901, 1335, 1513, 1545, 1751, 2703, 4505, 4539, 4717, 5253, 5459, 7565, 8755, 9167, 13515, 14151, 16377, 22695, 23585, 26265, 27295, 27501, 45835, 70755, 80189, 81885, 92803, 137505, 155839, 240567, 278409, 400945, 464015, 467517, 485851, 779195, 1202835, 1392045, 1457553, 2337585, 2429255, 7287765, 8259467, 24778401, 41297335, 123892005]

約数ペア:

[(1, 123892005), (3, 41297335), (5, 24778401), (15, 8259467), (17, 7287765), (51, 2429255), (53, 2337585), (85, 1457553), (89, 1392045), (103, 1202835), (159, 779195), (255, 485851), (265, 467517), (267, 464015), (309, 400945), (445, 278409), (515, 240567), (795, 155839), (901, 137505), (1335, 92803), (1513, 81885), (1545, 80189), (1751, 70755), (2703, 45835), (4505, 27501), (4539, 27295), (4717, 26265), (5253, 23585), (5459, 22695), (7565, 16377), (8755, 14151), (9167, 13515)]